Patents by Inventor Mark Lea-Wilson

Mark Lea-Wilson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Control system for reciprocating device
    Patent number: 8092191
    Abstract: A control system for a reciprocating device which includes a switching valve for directing fluid supply under pressure to one of two drive lines in an alternating manner, means for alternating the switching valve, and an exhaust circuit including and exhaust outlet, a first flow restrictor disposed between one drive line and the exhaust outlet, and a second flow restrictor disposed between the other drive line and the exhaust outlet. The system may include a selection valve for alternately connecting one of two drivelines to the exhaust outlet.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: January 10, 2012
    Assignee: Plainsman Mfg. Inc.
    Inventor: Mark Lea-Wilson
  • Control system for reciprocating device
    Patent number: 8082837
    Abstract: A control system for a reciprocating device includes a switching valve, a toggle for operating the valve, a trigger associated with the reciprocating device to actuate the toggle, and biasing means disposed on the trigger for applying a biasing force to the toggle. The valve includes a first drive line, a second drive line, a fluid supply inlet and a fluid exhaust outlet. The valve switches between the first and second drive lines upon actuation of the toggle by the trigger, to switch direction of the reciprocating device.
    Type: Grant
    Filed: September 3, 2008
    Date of Patent: December 27, 2011
    Assignee: Plainsman Mfg. Inc.
    Inventor: Mark Lea-Wilson
  • CONTROL SYSTEM FOR RECIPROCATING DEVICE
    Publication number: 20090097985
    Abstract: A control system for a reciprocating device which includes a switching valve for directing fluid supply under pressure to one of two drive lines in an alternating manner, means for alternating the switching valve, and an exhaust circuit including and exhaust outlet, a first flow restrictor disposed between one drive line and the exhaust outlet, and a second flow restrictor disposed between the other drive line and the exhaust outlet. The system may include a selection valve for alternately connecting one of two drivelines to the exhaust outlet.
    Type: Application
    Filed: October 8, 2008
    Publication date: April 16, 2009
    Applicant: PLAINSMAN MFG. INC.
    Inventor: Mark LEA-WILSON
  • CONTROL SYSTEM FOR RECIPROCATING DEVICE
    Publication number: 20090071323
    Abstract: A control system for a reciprocating device includes a switching valve, a toggle for operating the valve, a trigger associated with the reciprocating device to actuate the toggle, and biasing means disposed on the trigger for applying a biasing force to the toggle. The valve includes a first drive line, a second drive line, a fluid supply inlet and a fluid exhaust outlet. The valve switches between the first and second drive lines upon actuation of the toggle by the trigger, to switch direction of the reciprocating device.
    Type: Application
    Filed: September 3, 2008
    Publication date: March 19, 2009
    Applicant: PLAINSMAN MFG. INC.
    Inventor: Mark LEA-WILSON